74ALVCH16245DLG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
74ALVCH16245DLG4 is a 16-bit bidirectional non-inverting bus transceiver from Texas Instruments in the ALVCH high-speed logic family. It supports 1.65 V to 3.6 V supply voltage with 24 mA output drive and direction control for dual bus isolation. Available in 48-pin SSOP package, in stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 48
- Lifecycle
- OBSOLETE
- Datasheet
- 74ALVCH16245DLG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of 74ALVCH16245DLG4?
- 16-bit bidirectional bus transceiver with direction control enables full-duplex data transfer between two 16-bit buses
- ALVCH family operation at 1.65 V to 3.6 V with 50 pF load capacitance suits modern low-voltage processor interfaces
- 24 mA output sink current drives high-capacitance bus lines across backplanes and multi-board systems
What is 74ALVCH16245DLG4 used for?
The 74ALVCH16245DLG4 is designed for isolating and driving 16-bit data buses between processors, FPGAs, and memory in embedded computing and telecom line cards. Its 1.65 V to 3.6 V operating range and LVTTL-compatible I/O make it suitable for voltage translation between 1.8 V and 3.3 V logic domains. The 48-pin SSOP package enables compact routing in high-density PCB designs requiring simultaneous 16-bit parallel data transfer.
What are the specifications of 74ALVCH16245DLG4?
| YTEOL | 0 |
| Additional Feature | WITH DIRECTION CONTROL |
| Control Type | COMMON CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | ALVC/VCX/A |
| JESD-30 Code | R-PDSO-G48 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS TRANSCEIVER |
| Max I(ol) | 0.024A |
| Number of Bits | 8 |
| Number of Functions | 2 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.04mA |
| Prop. Delay@Nom-Sup | 3.7ns |
| Propagation Delay (tpd) | 3.7ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 1.65V |
| Supply Voltage-Nom (Vsup) | 1.8V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.635mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
Where can I find the 74ALVCH16245DLG4 datasheet?
74ALVCH16245DLG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for 74ALVCH16245DLG4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does direction control work in the 74ALVCH16245DLG4 for isolating two 16-bit buses?
The 74ALVCH16245DLG4 uses a single DIR pin and an output-enable pin to control data flow direction across all 16 bits simultaneously. Setting DIR high routes data from port A to port B; setting DIR low reverses flow from B to A. The output-enable pin tristates all 16 outputs, placing the bus in high-impedance mode for bus isolation. This common control architecture simplifies bidirectional bus design with only 2 control lines managing all 16 channels.
What supply voltage range does the 74ALVCH16245DLG4 support, and how does it handle 1.8 V to 3.3 V translation?
The 74ALVCH16245DLG4 operates from 1.65 V to 3.6 V supply voltage, with LVTTL-compatible input thresholds that accept signals from both 1.8 V and 3.3 V logic families. In mixed-voltage systems, powering the device from 2.5 V or 3.3 V while connecting one port to a 1.8 V logic device provides passive level translation without discrete resistor networks. The 50 pF rated load capacitance supports traces up to several centimeters at bus frequencies commonly used in 32-bit embedded processors.
For a processor-to-FPGA interface design, when is 74ALVCH16245DLG4 preferred over a 74LVC16245?
The ALVCH family offers approximately 30% faster propagation delays and lower power consumption at 3.3 V compared to the LVC family, making the 74ALVCH16245DLG4 preferable in high-frequency bus designs above 100 MHz where timing margin is tight. The 16-bit width in a single 48-pin SSOP package also reduces device count compared to using two 74ALVCH8245 8-bit parts, saving PCB area and component cost in dense processor-to-FPGA interface boards.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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